Lubricating device



T. VAN TUYL May 3, 1932.

LUBRICATING DEVICE Filed Aug. 20-I 1928 A nu w ZZ

Patented May 3, 1932 UNITED STATES PATENT OFFICE THOMAS VAN TUYL, FCHICAGO, ILLINOIS, ASSIGNOR TO T AY MANUFACTURING COMPANY, A CORPORATIONOF ILLINOIS LUBRICATING DEVICE Application filed August 20, 1928. SerialNo. 300,937.

'llxis invention relates to lubricating dein its bottom portion incommunication with vices and has among its objects to provide the upperpart of the interior ofthe reservoir a device which will operate bymeans of the or container 10. Threaded into the fitting 13 suction froma motor, the parts of which are is a connector having the enlarged nontobe lubricated in such wise as to deliver oiled circular flange 15 forengagement with a 55 air or an oil-air mixture to parts of such mowrenchor the like. Seated between the flange tor requiring lubrication, suchas the valve and the upper end of the fitting 13 is an elbow stems,upper cylinder walls, etc. Among 16 apertured at one end to closely titaround other objects is the provision of such a device the portion ofthe connector which projects 'lll in which the amount of lubricant beingsupabove the fitting 13, a gasket 18 being inter- 60 plied to the motorwill be indicated to the posed between the fitting 13 and the elbow 16user; to provide such a device in which as the as illustrated in Fig. 2.The connector 15 is suction to the motor increases, the amount ofprovided with a central bore or aperture 15b n oil delivery will bereduced; to provide such eXtending from the top to the bottom thereof.

l5 a device in which the air for carrying the and threaded in the samenear the lower end 65 lubricant to the motor will be utilized to is thesleeve narrowed in diameter at its break up the supply of lubricant andconvey lower end and provided with a central bore it to a place ofdeposit from which it may be 20 which is also narrowed at its lower endto ted upon a iibrous substance through which closely lit around andengage the upper end m the same air must pass for a final and more ofthe tube 22, illuStrated in Fig. 1 as extenddesirable oiling; to providea device of the 111g dOWIlWaldly into tbe container 10 adjacharacterindicated with which the mixture Cent the bottom thereof. The upperportion ci' oil and air is controlled to inversely vary 0f the tube 22and the inner Wall of the sleeve with variation in the suction obtainingin the 20 .fOlIIl 21u annular Chamber or passage 23 2U' manifold orother part of a motor. These and Wllleh terminales all the narrowedlower end other objects will be more fully set forth and Of Elle Sleeve-POIS 2Ob are provided in the described in the following specificationand Wall 0f the Sleeve 20 to aford communica- Shown in the accompanyingdrawings, in tion between the chamber 13a and the annular which; epassage 23. Seated in the upper end of the @dying my invention; is aVenturi tube constricted to form the Fig. 2 is a vertical plan View on agreatly characteristic throat 25a adjacent the upper enlarged scalethrough a portion of the deelltlof the tube 22, the bore 25b through the)y .View y tube 25 forming a continuation of the annular L lig. 3illustrates in section a slight modii- PaSSilge L 85 cation of thestructure shown in Fig. 2. A The elbow 16 iS pIOVCled with the rightlnthe drawings, 10 indicates a container ungulally formed passage v16uwhich comor reservoir for lubricant such as oil, the municates at oneend with an annular recess same being preferably constructed of trans-15di11 the Outer periphery ofthe connector 15, parent material as glass.This container is the connector being provided with a port 15 providedwith a. tightly fitting cover 11 upon leading from the leCeSS 15d t0 tbeannular pasnhich is mounted a small dome 1.1a having an Sage 15", thisrecess 15d insuring communicaair inlet 11b with which communicates atube tion between the passage 16EL and the elbow 16 12 extendingdownwardly into the lubricant, in the port 15e. The passage 16a isenlarged at L K, 5 in the form shown, its open end being located 16b anda pm 27 extends thereacross to form a adjacent the bottom ot thecontainer 10. cage for a freely mounted check ball 28, which itcentrally aoertured and internally under certain conditions will moveagainst threaded boss 11c is also provided upon the the inner end of theannular passage 16a and cover 11` and into this is threaded theaperclose the same. Y' tured litting 13 having an enlarged recess 13aThreaded into a suitable recess in the outer 100 `Fig. 1 is a frontelevation of a device em- SleeVe 20 and Projecting UPWll'dlytlleFefIOm80 i end of the elbow 16 is the threaded gland or nut 29 carrying andserving to lock the suction tube 30 which communicates with the inynector 15 is a sight feed and control device comprising the bottom ca-p31 which is chambered to accommodate a supply of fibrous material 32.Seated in the upper end of thecap 31 is a.l glass or transparentcylinder 34, a gasket 35 being interposed. An upper cap 36 is mountedupon the upper end of the cylinder 34 with a second gasket 37interposed. The caps 31 and 36 with cylinder 34 form a casing as will beapparent.

Carried by the upper cap 36 and threaded thereto is a cup member 38concentric with the cylinder 34 and having its side wall spaced inwardlythereof, being also located a substantial distance above the bottom cap31. This cup 38 is provided with a depending spout 38Et open toward andlocated above the brous material 32. In the bottom of the cup 38 aroundthe delivery spout port is a flange 38x which insures the retention of acertainl amount of accumulated oil which will increase the delivery ofoil when the device is tilted, as when the vehicle to which it isapplied is climbing a hill. In the wall of the cup 38 is provided aplurality of ports 38b furnishing communication between the interior ofthe cup and the interior of the cylinder 34, as will be apparent. Thecup 38 is provided with the an'gularly disposed rim 38which in turn isformed with the upwardly directed flange 381 which is threaded intoengagement with the depending flange 36c of the upper cap 36. From thebottom of the cup 38 projects an internally apertured tubular portion36"v threaded into engagement with the upper portion of the connector15, this engagement servingto draw the upper cup 36 into position andforcing t-he rim 38 against the gasket 37.

The cap 36 is provided with the upwardly extending externally threadedneck 36I on p which is threaded a smaller cap 40 having an aperture at40Et affording communication between the outside air and the upp'erchamber in the cap 36. Extending across the interior of the cap 36 andgripped between the cap and the cup flange 38L is a flexible diaphragm42 of any suitable material, centrally apertured for engagement with andsecuring fo the sleeve'44 through which is adjustably threaded a stem445 having a slotted head 45,a and a` downwardly extending portion yofrestricted diameter b which terminates in the lower end 45, which isprovided with an inclined cut-off face 45d forming a species of taperedvlower end, A coiled sprin 47 surrounds the sleeve 44 and a portion o itextends into a chamber 15g in the upper end of the connector 15, thefunction of the spring being to yieldingly resist downward movement ofthe diaphragm 42. The ports 1511 aHord communior other cause be set upin the tube 30, the

check ball 28 will move to close the passage 16a to prevent transmissionof such pressure through the device. f

In the operation of my device, as nearly as can be ascertained when thetube 30 is connected, for example, to the intake manifold of a gasengine, suction will be transmitted through the tube 30, and port 15 tothe annular passage 15", from whence it will be transmitted through port15f, fibrous material 32, interior of cylinder 34, through ports 38b tothe interior of cup 38, through chamber 15g, restricted passage 15,Venturi tube duct 25", throat 25a and duct 25h, annular passage 20",ports 20", chamber 13, and interior of the container 10. The suctionthus being transmitted to the interior of container 10 sets up a reducedpressure above the surface of the lubricant whichwill draw air throughthe air inlet .11b and tube 12, from whence, in the form shown, it willbubble up through the lubricant to the space thereabove. The air neednot be passed through the lubricant to enable the device to functionsatisfactorily, but the bubbling of the air where tube' 12 is usedindicates to the user that the lubricator is operating. The` air is nextdrawn through thesequence of ducts and passages in reverse order to thatspecified above. The reduced pressure at the upper end of the oil tube22 serves to draw lubricant out of the same inton the Venturi tube duct'25, this eductive action being enhanced by the Ven' turi tube as will berecognized, and as nearly as I can ascertain, at least a partialcomminution of such withdrawn lubricant is effected4by the throughrushing oiled air. The oiled air and its load of atomized or suspendedoil passes into the interior ofthe cup 38 where at least a portion ofthe suspended oil is deposited or separated out, and

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igeaseo o2 the ports 15h, which is desirable as it pre vents Filming otthe oil on the inner wall ot the cup 38 which would obstruct the ports38" and be carried to the fibrous material 32 by the air withoutdropping through the spout or delivery portion 353. rlhe ports Btlbpermit tree circulation or movement oi the air independently ot theports h and spout 381. irlhe upper open end oit the connector l5furnishing connnunication between the chamber' l5y and the interior ofthe cup 38 also permits this :tlow ot air so that the through rushingair does not atleet materially or detrimentally the tlow oi oil trom thecup through the spout 3811, so that it is caused to drop in a more orless regular manner. The air after deposit oi its` excess suspendedlubricant in the, cup is drawn through the saturated fibrous material 3Qand is linally oiled betere delivery to the tube and therethrough to themotor or engine. This assures a fair degree ot uniformity ot oiling ofthe air, even under varying conditions, and the glass cylinder 34permits inspection of the rate of flow of the oil to the fibrousmaterial 32 which aiiords some check on the rate of lubricant delivery.

lit is well known that the suction in the intalte nianitold tor example,varies inversely with the duty7 imposed upon the engine, as with 'lullopen throttle there is less suction, whereas at idling speed the suctionis at a manimum, and it is obvious that the delivery ot lubricantlshould vary inversely7 as the suction varies, i. e., itor heavy duty orhigh speed when the suction is relatively7 low more lubricant should besupplied and vice versa. To provide tor such variation the stem 45 isproif'ided, actuated by the diaphragm 42. The latter member is drawndown against the resistance ot the spring 47 more and more as thesuction increases, and .this movement moves the tapered end C ot thestem 45 'tai-ther into the restricted passage l5 to reduce the amount oioiled air and oil carried by such air, as will be apparent.

liv adiusting the position o't the stem 45 vertically, the regulation oflthe oil and air llow may be varied as desired.

lThe spout 38 being at one side oit the cup dit, may be positioned atthe rear oi the device with respect to the motor so that as the vehicleto which the device may be applied is traveling up-hill, any oil in thecup 38 will be certain to reachv the spout 38 and thus preventdiscontinuance o't' the lubrication even when climbing` a hill, whensuch lubrication is highly desirable.

lin llig. 3 l have illustrated a slight modi iication in which there isprovided in the `tube 22 a wich or the like of absorbent material,indicated by numeral 100, this wick preferably extending down below thelubricant level in the container l0. lts purpose is to utilize capillaryattraction to maintain lubricant constantlyT at the top of the tube 22to enhance its eduction under the action of the passing ain lt will beapparent that my device is susceptible of modification, particularly asto the details of construction and arrangement, and il do not wish to berestricted to the form shown and described except as restricted theretoby the appended claims properly interpreted.

What I claim is l. In a device of the class described, in combination alubricant container, an air duct, an oil duct in communication with saidcontainer and said air duct, said air duct being extended to form acommon duct for air and oil passing through said air and oil ducts, andmeans to vary the effective area of said common duct to vary` the iiowof air and oil therethrough, said last named means comprising areciprocable member and a diaphragm actuatable under variations ofpressure, said reciprocable member being carried by said diaphragm andprojecting into said common duct.

2. A device of the class described comprising, in combination, alubricant contain er, an air duct, an oil duct leading from the interiorof said container and communicating n with said air duct, a cup, andmeans afording communication between said cup and sald `air duct., saidcup being provided with a drop-delivery portion..

3.. A device of the class described comprising, in combination, alubricant container, an air duct, an oil duct leading from the interiorof said container and communicating with said air duct, a cup, meansaffording communication between said cup and said air duct, said cupbeing provided with a dropdelivery portion, and iibrous materiallocated' to receive oil dropping from said portion.

4. A device ot the class described comprising, in combination, alubricant container, an air duct, an oil duct leading trom the interiorot said container and communicating with said air duct, a cup, and meansaffording communication between said cup and said air duct, said meanscomprising a duct, said duct having a wall extending into and above thebottom of said cup and open at the upper end.

5. A device ot the class described comprising, in combination, alubricant container, an air duct, an oil duct leading trom the interioroi said container and communicating with said air duct, a cup, and meansali'ording communication between said cup and said air duct, said meanscomprising a duct. said duct having a wall extending into and above thebottom of said cup and open at the upper end, said wall being providedwith ports communicating with said duct and the interior of said cup.

6. A device o the class described comprising, in combination, alubricant containlll@ er, an air duct, an oil duct leading from theinterior of said container and communicating with said air duct, a cup,and means aford`` ing communication between said cup and said 'air duct,saidlast named means comprising a duct having a-relatively restrictedportion, a reciprocable adjusting member extending into and spaced fromsaid restricted portion, said member being of varied cross-sectionalarea at the portion thereof co-acting with said drop-delivery portion,said drop-delivery portion being eccentrically located on saidy g. In adevice of the class described, a lubricant container, a cup, saiddevicebeing provided with a duct extending between said container andsaid cup, said cup being mounted in a surrounding casing and having itsside walls spaced therefrom, said cup being provided with an oildelivery portion and being further provided with ports in its side walllocated above said delivery portion.

9. In a device of the class described, a lubricant container, a cup,said device being provided with a duct extending between said containerand said cup, said cup being mounted in al surrounding casing and havingits side walls spaced therefrom, said cup being provided with an oildelivery portion and being further provided with ports in its side walllocated abovevsaid delivery portion, fibrous material located in saidcasing and arranged to receive oil from said delivery portion, and meansto transmit suction from the intake manifold of 'an engine or the liketo the interior of said casing through' said fibrous material, wherebyair will be drawn Athrough said duct into said casing and through saidfibrous material. i

10. In a device of the class described, a lubricant container, an airduct, a lubricant duct communicating therewith and with said container,means to effect movement of air through said air duct by suction from adesired region, and means to restrict the flow of air and oil throughsaid lubricant duct, said restricting means being operative to decreasesuch flow as said suction increases.

11. A lubricating device for internal combustion engines comprising incombination a covered lubricant receptacle for holding a body of oil, afsuction outlet for connection with the engine suction and communicatingwith a conduit adapted to extend into and communicate with thelubricant, an air inlet into said receptacle connected with a conduitarranged Ito extend into and communicate with the lubricant, whereby acurrent of air maybe drawn into the receptacle to carry lubricant withit into said suction conduit, and fibrous material to which saidlubricant is delivered and arranged to have a current of air drawnthrough it in reaching said suction outlet, whereby lubricant is pickedup from said fibrous material and carried to said suction outlet.

l2. A lubricating device for internal combustion en ines comprising incombination a covered lu ricant receptacle forv holding a body of oil, asuction outlet for connection with the engine suction and communicatingwith a suction conduit adapted to extend into and communicate with thelubricant, lubricant holding means interposed between said suctionconduit and said suction outlet, an air inlet into saidreceptacleconnected with a conduit arranged to extend into andcommunicate'with the lubricant, whereby a current of air may be drawninto the receptacle to carry lubricant with it into said suction conduitto be discharged into said holding means, and a body of fibrous materialin said holding means for absorbing lubricant therefrom, said fibrousmaterial being placed in the path to said suction outlet whereby acurrent of air is drawn through the fibrous rmaterial to pick uplubricant therefrom and carry it to said suction outlet.

13: A lubricating device for internal combustion engines comprising incombination, a

-covered lubricant receptacle for holding a body of oil, a suctionoutlet for connection with the engine suction and communicating with aconduit adapted to be connected with the engine, an air inlet conduitleading into said receptacle, means providing a passage leading fromsaid suction outlet into and communicating with the oil in saidreceptacle, a restricted throat in said passage for creating a suctionto draw oil throu h said passage to the upper portion of sai device, anda space at the upper portion of said device in which the oil drawnthrough said passage may collect before passing through said suctionoutlet.

14. A lubricating device for internal coinbustion engines comprising incombinatiom'a covered lubricant receptacle for holding a body of oil, asuction outlet for connection with the engine suction and communicatingwith a conduit adapted to be connected with the engine, an air inletconduit leading into said rece tacle, means providing a passage leadingrom said suction outlet into and communicating with the oil iii saidreceptacle, a restricted throat in said passage for creating a suctionto draw oil through said passage to the upper portion of said device, aspace at the upper portion of said device in which the oil drawn throughsaid passage may collect before passing through said suction outlet, andcontrolling means in the path oli tlorv in said receptacle forcontrolling the rate of discharge through said suction outlet. 15. Alubricating device for internal com fi bustion engines comprising incombination, a lubricant receptacle, a suction conduit connecting thereceptacle With the engine intake tor conducting lubricant to the enginecombustion space, means for holding a quantity l@ ol:n lubricant at apoint above the lubricant level in said receptacle, an air inlet intosaid receptacle, means actuated by the suction communicated to saidreceptacle by said conduit for elevating lubricant and air from l5 saidreceptacle to said holding means, means tor delivering lubricant fromsaid holding means to said suction conduit, and means tor regulatingflow of oil and air to said lubricant holding means., 20 16. llubricating device for internal combustion engines comprising incombination a covered lubricant receptacle Jfor holding a body of oil, asuction outlet for connection with the engine suction and communicatingwith a conduit adapted to extend into and communicate With thelubricant, an air inlet into said receptacle connected with a conduitarranged to extend into and communicate with the lubricant, wherebyT acurrent of air tu may be drawn into the receptacle to carry lubricantWith it into said first named conduit, fibrous material to which saidlubricant is delivered and arranged to have a current ci air drawnthrough it in reaching said suc- 35 tion outlet, whereby lubricant ispicked up from said librous material and carried to said suction outlet,and an adjustable needle valve controlling the passage in the suctioncon duit for regulating the current of air and 4o lubricant passingthrough said suction conduit.. ln testimony whereof, I have signed myname to this specication.

THOMAS VAN TUYL.

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